Muffler



P. OSULLIVANI.

mumpn. APPLICATION FILED FEB-'IO- I921.

Patented May 17, 1921.

UNITED STATES PATENT OFFICE.

PAUL OSULLI'V'AN', OE MILWAUKEE, WISCONSIN.

MUFFLER.

' Specification of Letters Iatent.

Patented May 1'7, 1921.

Application filed February 10, 1921. Serial No. 443,908.

-Mufliers; and I do hereby declare that the following is a full,'clear, and exact description thereof.

My invention has for its object to provide a simple, economical and effective cut-out valve for attachment to the exhaust nozzle of an internal combustion engine. The invention consists in certain peculiarities of construction and combination of parts as are hereinafter set forth with reference to the accompanying drawings and subsequently claimed.

In the drawing:

Figure 1 represents a longitudinal sectional elevation of a cut-out valve embodying the features of my invention, the sec-H,

tion being indicated by line 1-1 of Fig. 2, and

Fig. 2 is a cross section of the same. the section being indicated by line 2-2 of Fig. 1. ,1

Referring by characters to the drawing, A represents the main passageway formed in a tubular shell embodying a pair of longitudinally separable units 1, 2. Eachof the units is provided with outwardly projecting matched flanges 1 2, which are provided with intermediate semi-circular recesses 1" .2", the same forming a circular crank bearing. The units are secured together by series of bolts 3, which pass through matched apertures of the flanges as shown. The shell unit 2 is provided with an angular nozzle 4, which nozzle is radially disposed with relation to the crank bearing, and due to its angularposltlon, when the main passageway is closed the exhaust gases will discharge at such an angle that the force of this gas will'be dispersed before the same strike the ground to avoid throwing up dust. r

The nozzle 4. and main passageway A are formed with a common circular valve track i which valve head is adapted to close either the main passageway or the nozzle respec-.

tively. The valve head constitutes part of a crank-strap 8 having studs 9, which are seated in the shell bearings. ()ne of the studs has secured thereto an actuating arm 10 as best shown in Fig. 2. The valve head as shown is preferably formed with a circular outer face, which circular face coincides w1th the clrcular. track 5, whereby the associated parts are thus snugly nested together, and when the valve head is shifted from one position to the other, it will be noted that its peripheral edge forms a cutting blade, whereby carbon deposits are scraped from the track or seat 5 to thus insure a comparatively tight joint at all times.

From the foregoing description, it will be seen that the structure as a whole is built up from four units, which are preferably cast, and owing to the simplicity in formation, machine work is eliminated. Hence, the structure can be manufactured at a minowingto the simple operation of the valve,

the spent gases can be conveniently cut off from the muffler or directed to the mufiler by swinging the valve to a position where the nozzle 4. is closed.

It is understood that I may vary the structural features of the device within the scope of the claim,;-

I claim:

A cut-out valve comprising a tubular shell forming a main gas passage, the shell embodying a pair of longitudinal separable units hav1ng companion recesses forming a crank bearing, one of the units having an integral angular nozzle radially disposed with relation to the bearing, the nozzle and main passage formed by the shell units being provided with a common uninterrupted circular valve track, concentrically disposed with relation to the crank bearing, a one-- ;piece valve head engageable with the track and adapted to selectively close the main passage of the shell or nozzle, the one-piece valve head including inte ral crank straps terminating withstuds gournaled in the shell bearings, one of whichcarries an actuating arm.

In testimony that I claim the foregoing I-liave hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin.

7 PAUL OSULLIVAN. 

